// mixins
.rotate(@rotation) {
    -webkit-transform: rotate(@rotation);
    -moz-transform: rotate(@rotation);
    -ms-transform: rotate(@rotation);
    -o-transform: rotate(@rotation);
    transform: rotate(@rotation);
}

.box-sizing(@box-sizing) {
    -webkit-box-sizing: @box-sizing;
    -moz-box-sizing: @box-sizing;
    box-sizing: @box-sizing;
}
.transition-property(@transition) {
    -webkit-transition-property: @transition;
    -moz-transition-property: @transition;
    -o-transition-property: @transition;
    transition-property: @transition;
}

.transition-duration(@duration) {
    -webkit-transition-duration: @duration;
    -moz-transition-duration: @duration;
    -o-transition-duration: @duration;
    transition-duration: @duration;
}

.transition-timing-function(@timing){
    -webkit-transition-timing-function: @timing;
    -moz-transition-timing-function: @timing;
    -o-transition-timing-function: @timing;
    transition-timing-function: @timing;
}